Home / 18,857.88-28,284.66-6,377.94

Finding the Fourth Proportional to 18,857.88, 28,284.66 and 6,377.94

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Solution

The fourth proportional to 18,857.88, 28,284.66 and 6,377.94 is: 9,566.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,857.88 : 28,284.66 = 6,377.94 : x
  2. Step 2: Convert to fraction form
    18,857.88/28,284.66 = 6,377.94/x
  3. Step 3: Cross multiply
    18,857.88x = 28,284.66 × 6,377.94
  4. Step 4: Simplify right side
    18,857.88x = 180,397,864.40
  5. Step 5: Solve for x
    x = 180,397,864.40/18,857.88
  6. Step 6: Final answer
    x = 9,566.18

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.